A: Yes. ZTW provides free technical support for all our products. You can reach our technical support team via email at sales@ztw-esc.com or through the contact form on our website. Our team can assist with installation, programming, troubleshooting, firmware updates, and product selection. For complex technical issues, we may request photos, videos, or data logs to help diagnose the problem. We aim to respond to all technical inquiries within 24–48 business hours.
A: DOA means a product that is non-functional upon arrival or fails within a short period after first use due to a manufacturing defect. If you receive a ZTW product that is DOA, contact our support team immediately with proof of purchase and a description of the issue. We will arrange a replacement or repair at no cost to you, including return shipping. DOA claims must be reported within 30 days of receipt.
A: To request repair service: 1) Contact ZTW customer support at sales@ztw-esc.com with your name, contact information, product model and serial number, proof of purchase, and a detailed description of the fault. 2) Our support team will evaluate the issue and may provide troubleshooting guidance or issue a Return Merchandise Authorization (RMA). 3) If the product needs to be returned, fill out the "ZTW Repair & Return Form," then send the product, the completed form, and proof of purchase to our Shenzhen service center. 4) Our after-sales department will evaluate the damage upon receipt. 5) After repair, the product will be returned to you. During the warranty period, repair costs for manufacturing defects are free; shipping costs are shared by both parties (ZTW covers return shipping for DOA products).
A: ZTW offers a 12-month warranty on all standard products from the date of purchase, covering manufacturing defects and material issues. For customers in Europe, the warranty period is extended to 24 months. The warranty does not cover damage caused by misuse, improper installation, over-voltage, water damage (on non-waterproof models), unauthorized modification, or normal wear and tear. To make a warranty claim, contact our customer support team with your proof of purchase, product serial number, and a description of the issue.
A: The ZTW LCD Program Card G2 is a handheld programming device with a backlit LCD screen that connects to the ESC's signal port via a JR connector. It provides a visual, menu-driven interface for adjusting all ESC parameters without using the transmitter stick or a mobile device. It is compatible with Beatles G2, Mantis G2, Skyhawk, Seal G2, Shark G2, and DX series ESCs. The Program Card G2 is powered by the ESC itself (no separate battery needed) and stores the last-used settings for quick reference.
A: The ZTW Bluetooth Module is a small external accessory (25×17×9mm, 5g) that connects to the ESC's signal/upgrade port and enables wireless communication with the ZTW mobile App (iOS and Android). It allows parameter programming, real-time data viewing (voltage, temperature, RPM), and firmware upgrades without a wired connection. It is compatible with Mantis G2, Skyhawk, Seal G2, Shark G2, DX, and ZX series ESCs. Beast PRO G2 ESCs have Bluetooth built-in and do not require the external module.
A: Programmable parameters vary by series but commonly include: Throttle settings — throttle curve, startup mode/punch, drag brake, brake force, and reverse mode. Voltage protection — low-voltage cutoff type (soft/hard) and cutoff voltage per cell. BEC output — output voltage (5V/6V/7.4V/8.4V depending on model). Motor control — motor rotation direction, PWM frequency, timing advance, and for Beast PRO: BOOST timing, TURBO timing, Modified/Stock/Drift/Crawler modes. Protection — over-temperature cutoff threshold, signal-loss behavior. Advanced — for Skyhawk: governor gain and head speed; for FOC/ZX: parameterless auto-tuning.
A: Firmware updates are available for most ZTW G2 series ESCs. For Beast PRO G2 (built-in Bluetooth): open the ZTW mobile App, connect to the ESC via Bluetooth, navigate to the Firmware Upgrade section, and follow the on-screen prompts. Do not power off the ESC during the upgrade — the red LED will flash rapidly during the process. For other G2 series (Mantis, Skyhawk, Seal, Shark, DX, ZX): use the optional ZTW Bluetooth Module connected to the ESC's upgrade port, then use the mobile App to update firmware. The Beatles G2 and Beast RTR series do not support firmware upgrades. Always download firmware from the official ZTW App or website.
